Researchers have developed new software using smart phones’GPS and imaging abilities that determine the exact location of distant objects as well as monitor the speed and direction of moving objects� 题目和参考答案——青夏教育精英家教网—

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Researchers have developed new software using smart phones’GPS and imaging abilities that determine the exact location of distant objects as well as monitor the speed and direction of moving objects．The software could eventually allow smart phone-armed soldiers to target the location of their enemies．On the home front，the software could be used by everyone，including golfers judging distance to the green and biologists documenting the location of a rare animal without disturbing it．
“The great advantage of a Smartphone is that it provides so many tools in a single，readily available，relatively inexpensive package，”said Qia Wang，a doctoral student who led the development of the software．“For example，on the battlefield，a soldier needs a rangefinder，compass，GPS and other tools to get information before calling in an air strike．With our software，the soldier can have all those instruments in one device that can be purchased off the shelf．When that soldier returns from War，she can use the same Software to protect her family by clocking a speeder near her children’s school and catching the criminal on video．”
Wang and his colleagues developed their software to locate and track：
Targets of known size—when the size of the target is known．a single image is enough to pinpoint the target’s location．
Targets of unknown size—If the exact size of a target is unknown，the software uses two images to triangulate the location of the target·
Moving targets—By taking a short video of a moving target，the smartphone software can calculate how fast the target is moving and in what direction it is going.
“Currently，our software is limited by the physical abilities of smartphone hardware，but the devices are improving rapidly，”Wang said．“We expect that improvements in GPS accuracy，battery life and camera resolution will allow our software to make even more accurate observations．”
小题1:From Paragraph 1 we can know that the new software can.

A．determine the speed of moving objects

B．1ocate objects in the distance exactly

C．defend soldiers against their enemies

D．help biologists protect rare animal

小题2:The example given by Qia Wang is meant to .

A．make an advertisement

B．describe the software briefly

C．show the benefits of the software

D．present the functions of smartphones

小题3:How does the software calculate the speed of a moving object?

A．By taking a short video．

B．By locating its position.

C．By taking a single image．

D．By measuring real-life size.

小题4:What’s Qia Wang’s attitude towards the future of the software?

A．Casual．

B．Optimistic．

C．Cautious．

D．Flexible

小题5:What is the best title of the text?

A．Qia Wang，a Talented Doctoral Student

B．Use Smartphones to Their Full Potential

C．Targeting and Tracking With Smartphones

D．Smartphone-armed Soldiers on the Battlefield

小题1:B
小题2:C
小题3:A
小题4:B
小题5:C

试题分析：这是一篇科普性文章。研究人员已经开发出新的软件，使用智能手机的GPS和成像功能，确定远处物体的确切位置以及监控运动物体的速度和方向。
小题1:B细节理解题。根据第一段中的“determine the exact location of distant objects”“allow smartphonearmed soldiers to target the location of their enemies”以及“biologists documenting the location of a rare animal”可知，新软件可以准确定位远距离的物体。故答案为B。
小题2:C细节理解题。从文章第二段的内容看，博士生王洽举例说在战场上，新软件可以集多种作用于一身，帮助士兵侦察；而当士兵从战场上返回时，她又可以使用相同的软件保护她的家人。由此可知该例子是为了说明新软件的优势。故答案为C。
小题3:A细节理解题。从文章倒数第二段中的“Moving targets — By taking a short video of a moving target”可知答案为A。
小题4:B推理判断题。通读全文，尤其是根据文章的最后一句“We expect that improvements in GPS accuracy, battery life and camera resolution will allow our software to make even more accurate observations.”可推知王洽对新软件使用前景的态度是乐观的。
小题5:C标题归纳题。通读全文内容可知，本文主要讲述的是智能手机应用程序的跟踪与定位功能，故C项为最佳标题。

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